The Audi driver had taken the chequered flag on his 25th birthday after long-time leader Edoardo Mortara spun late in the second race of the season. But an inspection of his car revealed that the FIA security stickers on the inverters and motors did not correspond with those declared on the car’s technical passport.

The breach of technical and sporting regulations meant Abt lost his first victory and the overall lead in the all-electric series. Audi Sport said it intended to appeal, with the matter set to go before the governing FIA's international tribunal. Audi said the issue was apparently an administrative mistake that gave them no advantage on the racetrack.

'Abt deserved victory'

Team Audi Sport ABT Schaeffler principal Allan McNish said: "Daniel drove fantastically on both days and absolutely deserves this victory. We want the opportunity to be able to clarify all details, that’s why we’ve announced the intent to appeal."

Former F1 driver and Le Mans 24 Hours winner McNish was in his first weekend as a team principal, heading up Audi’s Formula E involvement as a full works team.

Head of Audi Motorsport Dieter Gass said: "That we had a strong race performance on both days is a positive - but it goes without saying that we had a somewhat different idea of Sunday night."

Separate infringement

Rosenqvist's victory was the second of his Formula E career. The Mahindra driver had spun out of the lead from pole at the first corner but recovered to second place after Mortara spun his Venturi car with less than three laps left. New Zealand’s Mitch Evans was promoted to third to give Jaguar its first podium finish in the all-electric series they joined last year.

Audi, in its first weekend as a full works entry, was also fined €5000 (R81 000) for a separate infringement. Five Audi team members walked onto the track to get to the podium before the final car had entered parc ferme, which the stewards deemed a "serious breach of safety regulations".